Strings In Java
Java Strings are discussed, to better meet the demands of the learners.
A string is used to store text. It consists of a collection of characters surrounded by double quotes.
Assign a value to a String variable:
Java strings are actually objects that contain methods to perform certain operations on strings.
A string’s length can be found with the length() method, for instance:
More String Methods
There are a variety of methods in String, for example toUpperCase() and toLowerCase():
Java Strings Character Search
The indexOf() method returns the position of the first instance of a specified text in a string (including whitespace) along with the index (the number) at which it appears:
A string’s initial position is 0, its second is 1, and its third place is 2.
Java Strings Methods
|contains()||Checks if a substring exists in the string.|
|substring()||Substrings of strings are returned.|
|join()||Strings are joined using the delimiter.|
|replace()||Specifies a new character to replace the old one.|
|replaceAll()||Substrings matching a regex pattern are replaced.|
|replaceFirst()||First matching substring should be replaced.|
|charAt()||The character present in the specified location will be returned.|
|getBytes()||Bytes are converted from the string.|
|indexOf()||In a string, this function returns the position of the specified character.|
|compareTo()||The dictionary order is used to compare two strings.|
|compareToIgnoreCase()||Case differences are ignored when comparing two strings.|
|trim()||Removes all leading and trailing whitespaces.|
|format()||A formatted string is returned.|
|split()||Divides a string into an array.|
|toLowerCase()||Lowercases the string.|
|toUpperCase()||Uppercases the string|
|valueOf()||The specified argument will be returned as a string.|
|toCharArray()||This function converts the string into a char array.|
|matches()||Matches the string against the regex..|
|startsWith()||This method checks if a string begins with a given string.|
|endsWith()||A string is checked to see if it ends with the given string.|
|isEmpty()||An empty string is checked or not.|
|intern()||This function returns the string’s canonical representation.|
|contentEquals()||A string is compared to charSequence to determine if it is equal|
|hashCode()||The string’s hash code is returned.|
|subSequence()||The string is subsequenced by this method.|
Visit our Java String Methods Reference for a comprehensive list of String methods.
All string methods are covered in the reference, along with descriptions and examples.